Re: TI-H: TI <--?--> I2C
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Re: TI-H: TI <--?--> I2C
So then how are TI-calcs networked if there is no MBus hub? I understand
the MBus/I2C thing now, but I still don't get how people told me that it was
a network if there is no hub for it...
-Miles Raymond
-----Original Message-----
From: kaus <kaus@cybrzn.com>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Saturday, October 17, 1998 10:53 AM
Subject: Re: TI-H: TI <--?--> I2C
>
>Go to www.clinet.fi/~ozone/i2c for information on the Mbus and I2C systems.
> Grant is right in that you only can legally use the I2C protocol if you
>have a I2C device made by Phillips in the network. However, its not likely
>that Phillips is going to come to your house and investigate your
>calculaotr for fear that it may use the I2C protocol.
>
>Back to your initial question, yes, two calculators using a ti-cable can
>use the i2c protocol. When grant said there was no MBus, he meant that
>there was no MBus protocol. While this is not entirely true (Osma did
>modify the I2C protocol slightly to better accomadate a calculator
>network), the MBus system is more like a bunch of routines which enable you
>to use the I2C protocol from your calculator over the link port.
>
>Jonathan Kaus
>
>At 10:19 PM 10/16/98 -0800, you wrote:
>>There is no MBus. Under the restrictions made by Philips the standard
must
>>be called 'I2C' and have atleast one authorized I2C device on the network,
>>none of which include a TI calculator.
>>
>>You can use the I2C bus routines on your calculator only if you have a
real
>>I2C device on the network.
>>
>>The SDA and SDC lines are all connected in parallel and handshaking is
>>accomplished similar to 10b-t ethernet, but not totally the same. All
>>grounds also have to be connected.
>>
>>Grant
*CLIP*
>-Jonathan Kaus
>kaus@cybrzn.com
>jedsmeny@hotmail.com
>jedsmeny on IRC (DALNet or EFNet)
>ICQ: 15973088 (jedsmeny)
>AIM: Jedsmeny
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